<template>
  <!-- 新增部门的弹层 -->
  <el-dialog
    :title="showTitle"
    :visible.sync="showDialog"
    @close="btnDel"
  >
    <!-- 表单组件  el-form   label-width设置label的宽度   -->
    <!-- 匿名插槽 -->
    <el-form
      ref="deptForm"
      label-width="120px"
      :model="formData"
      :rules="rules"
    >
      <el-form-item
        label="部门名称"
        prop="name"
      >
        <el-input
          v-model="formData.name"
          style="width:80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item
        label="部门编码"
        prop="code"
      >
        <el-input
          v-model="formData.code"
          style="width:80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item
        label="部门负责人"
        prop="manager"
      >
        <el-select
          v-model="formData.manager"
          style="width:80%"
          placeholder="请选择"
          @focus="getEmployeeSimple"
        >
          <el-option
            v-for="item in peoples"
            :key="item.id"
            :label="item.username"
            :value="item.username"
          />
        </el-select>
      </el-form-item>
      <el-form-item
        label="部门介绍"
        prop="introduce"
      >
        <el-input
          v-model="formData.introduce"
          style="width:80%"
          placeholder="1-300个字符"
          type="textarea"
          :rows="3"
        />
      </el-form-item>
    </el-form>
    <!-- el-dialog有专门放置底部操作栏的 插槽  具名插槽 -->
    <el-row
      slot="footer"
      type="flex"
      justify="center"
    >
      <!-- 列被分为24 -->
      <el-col :span="6">
        <el-button
          type="primary"
          size="small"
          @click="btnOk"
        >确定</el-button>
        <el-button
          size="small"
          @click="btnDel"
        >取消</el-button>
      </el-col>
    </el-row>
  </el-dialog>
</template>

<script>
import {
  getDepartments,
  addDepartments,
  getDepartDetail,
  updateDepartments
} from '@/api/departments'
import { getEmployeeSimple } from '@/api/employees'
const defultform = {
  name: '',
  code: '',
  manager: '',
  introduce: ''
}
export default {
  name: 'AddDept',
  props: {
    treeNode: {
      type: Object,
      required: true
    }
  },
  data() {
    const checkNameRepeat = async(rules, value, callback) => {
      // 1.找到所有的部门数据
      const { depts } = await getDepartments()
      // 2.找到爹的儿子 ，去判断名称是否重复
      let isRpepeat = false
      if (this.formData) {
        isRpepeat = depts.filter(item => item.id !== this.formData.id && item.pid === this.treeNode.pid).some(item => item.name === value)
      } else {
        isRpepeat = depts.filter((item) => item.pid === this.treeNode.id).some((item) => item.name === value)
      }
      isRpepeat ? callback(new Error(`同级部门下已经有${value}的部门了`)) : callback()
    }
    const checkCodeRepeat = async(rules, value, callback) => {
      // 1.找到所有的部门数据
      const { depts } = await getDepartments()
      // 2.找到爹的儿子 ，去判断名称是否重复
      let isRpepeat = false
      if (this.formData) {
        isRpepeat = depts.some(item => item.id !== this.formData.id && item.code === value && value)
      } else {
        isRpepeat = depts.some((item) => item.code === value && value)
      }

      isRpepeat ? callback(new Error(`组织架构中已经有部门使用${value}的部门了`)) : callback()
    }
    return {
      showDialog: false,
      formData: {
        ...defultform
      },
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 50,
            message: '部门名称要求1~50个字符',
            trigger: 'blur'
          },
          { trigger: 'blur', validator: checkNameRepeat }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 50,
            message: '部门编码要求1~50个字符',
            trigger: 'blur'
          },
          { trigger: 'blur', validator: checkCodeRepeat }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 300,
            message: '部门介绍要求1~50个字符',
            trigger: 'blur'
          }
        ]
      },
      peoples: []
    }
  },
  computed: {
    showTitle() {
      return this.formData.id ? '编辑部门' : '新增子部门'
    }
  },
  methods: {
    async getEmployeeSimple() {
      this.peoples = await getEmployeeSimple()
    },
    async getDepartDetail(id) {
      this.formData = await getDepartDetail(id)
    },
    btnOk() {
      this.$refs.deptForm.validate(async(isOk) => {
        if (!isOk) return false
        if (this.formData.id) {
          await updateDepartments(this.formData)
          this.$message.success('修改成功')
        } else {
          await addDepartments({ ...this.formData, pid: this.treeNode.id })
          this.$message.success('添加成功')
        }
        this.$emit('addDepts')
        this.$refs.deptForm.resetFields()
        this.showDialog = false
      })
    },
    btnDel() {
      this.formData = { ...defultform }
      this.$refs.deptForm.resetFields()
      this.showDialog = false
    }
  }
}
</script>

<style lang="scss" scoped></style>
